Color map of Mars: Viking Orbiter MDIM 2.1

This is the most accurate color global mosaic of Mars to date, produced in 2014, from Viking data: the Viking Orbiter Colorized Mars Digital Image Model (MDIM) version 2.1. The click-to-enlarge version has a resolution of 2.5 km/pixel; the full-resolution map, available from the USGS, is 256 pixels per degree (232 m/pixel).